Unit 3 Topic 2 Section A & B I. 用所给词的适当形式填空 1. They ________(see) some animals on the island last Sunday. 2. Please ask somebody ________(help) us with the work. 3. ________________ (not worry). I can help you. 4. Your sister is too young _________(go) to school. 5. How about ____________(walk) around our school? 6. If it ___________ (rain), I will stay at home. 7. They talked about the party after the people _________ (leave) 8. You’d b